Johnson Controls T-4000-2145 Plastic Cover

The Johnson Controls T-4000-2145 Plastic Cover is a professional-grade replacement engineered specifically for T-4000 series pneumatic thermostats. This beige thermostat cover is designed for vertical mounting applications and provides a clean, secure finish for your field installations. Featuring a single set point window, it allows for immediate visual verification of thermostat settings without the need to remove the housing, streamlining routine maintenance for service techs. As a genuine pneumatic control accessory, it maintains the integrity of the original system design and is built from impact-resistant plastic to withstand the rigors of mechanical rooms. This specific model is configured without a thermometer, making it the correct choice for specialized HVAC pneumatic controls where external temperature sensing is either handled separately or not required at the cover interface. Installers can count on the exact fit and finish expected from the Johnson Controls T-4000 series, ensuring the bimetal sensing elements remain protected from environmental debris while allowing for necessary airflow.

Key Benefits:

• Direct Compatibility: Engineered for a precise fit with all standard Johnson Controls T-4000 vertical pneumatic thermostats.
• Visual Efficiency: Integrated set point window enables quick setpoint monitoring without exposing internal pneumatic components.
• Professional Aesthetics: Classic beige finish with the authentic Johnson Controls logo for a consistent appearance across commercial facilities.
• Durable Construction: High-impact plastic housing protects sensitive bimetal elements from physical damage and tampering.
• Field-Ready Design: No-thermometer configuration simplifies the faceplate for specialized pneumatic sensing applications.

Common Questions:

• Does this cover include mounting screws? Most T-4000 covers are designed to snap onto the existing subbase or use standard #4-40 hex head screws. It is recommended to retain the hardware from the existing unit.
• Can I use this on a horizontal thermostat? Negative. This model is specifically molded for vertical mount orientation to ensure the logo and window align correctly with the internal dial.
• Will this fit T-4002 or T-4100 models? Yes, as long as the base unit is a vertical configuration within the T-4000 series and utilizes a single setpoint dial.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.